When I’m replying to a buyer notification on my laptop, I cannot add any line returns which makes copy look terrible. If I respond on my phone with the app, it works fine.
If you click the \/ icon next to “send message” it says:
Pressing Enter will
Start a new line Press ctrl+Enter to send message [1st option]
Send message [2nd option]
Selecting the first option should be what you want I think if you haven’t done that.